<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="dialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区 -->
      <el-table :data="userlist" style="width: 100%" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column prop="username" label="姓名" width="180"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column prop="mg_state" label="状态">
          <!-- 作用域插槽 -->
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-tooltip
              :enterable="false"
              class="item"
              effect="dark"
              content="修改"
              placement="top-start"
            >
              <!-- 修改按钮 -->
              <el-button
                @click="showEditDialog(scope.row.id)"
                type="primary"
                icon="el-icon-edit"
                size="mini"
                circle
              ></el-button>
            </el-tooltip>
            <el-tooltip
              :enterable="false"
              class="item"
              effect="dark"
              content="删除"
              placement="top-start"
            >
              <!-- 删除按钮 -->
              <el-button
                @click="removeUser(scope.row.id)"
                type="danger"
                icon="el-icon-delete"
                size="mini"
                circle
              ></el-button>
            </el-tooltip>
            <el-tooltip
              :enterable="false"
              class="item"
              effect="dark"
              content="分配角色"
              placement="top-start"
            >
              <!-- 分配角色按钮 -->
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                circle
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>

      <!-- 添加用户的对话框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="dialogVisible"
        width="50%"
        @close="addDialogClosed"
      >
        <!-- 添加用户表单 -->
        <el-form
          :model="addForm"
          :rules="addFormRules"
          ref="addFormRef"
          label-width="70px"
        >
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>

        <span slot="footer" class="dialog-footer">
          <el-button @click="dialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 修改用户对话框 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editdialogVisible"
        width="50%"
      >
        <el-form
          :model="editForm"
          :rules="addFormRules"
          ref="editRef"
          label-width="70px"
        >
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机号" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editdialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 分配权限对话框 -->
      <el-dialog
        title="分配权限"
        @close="setRoleDialogClosed"
        :visible.sync="setRoleDialogVisible"
        width="50%"
      >
        <div>
          <p>当前用户：{{ userInfo.username }}</p>
          <p>当前角色：{{ userInfo.role_name }}</p>
          <p>
            分配新角色:
            <el-select v-model="selectedRoleId" placeholder="请选择">
              <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id"
              >
              </el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoleDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;

      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb();
      }

      cb(new Error("请输入合法的邮箱"));
    };

    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;

      if (regMobile.test(value)) {
        return cb();
      }

      cb(new Error("请输入合法的手机号"));
    };

    return {
      queryInfo: {
        query: "",
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少数据
        pagesize: 5,
      },
      userlist: [],
      total: 0,
      //   控制对话框的显示隐藏
      dialogVisible: false,
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //   表单验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          { min: 3, max: 10, message: "用户名长度在3-10之间" },
        ],
        password: [
          { required: true, message: "请输入用密码", trigger: "blur" },
          { min: 6, max: 15, message: "密码长度在6-10之间" },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 控制用户对话框显示
      editdialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 控制分配角色对话框显示
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 已选中的角色id值
      selectedRoleId: "",
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      let { data } = await this.$axios.get("users", { params: this.queryInfo });
      if (data.meta.status !== 200) {
        return this.$message.error("获取用户列表失败");
      }
      this.userlist = data.data.users;
      this.total = data.data.total;
      //   console.log(data);
      //   console.log(this.userlist);
    },

    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList(); //重新获取数据
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList(); //重新获取数据
    },
    // 监听switch状态改变
    async userStateChange(userinfo) {
      // console.log(userinfo);
      let { data: res } = await this.$axios.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error(res.meta.msg);
      }
      this.$message.success(res.meta.msg);
      // console.log(res);
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      // 重置表单
      this.$refs.addFormRef.resetFields();
    },
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return;
        // 成功就发送添加用户请求
        let { data: res } = await this.$axios.post("users", this.addForm);
        if (res.meta.status !== 201) {
          this.$message.error(res.meta.msg);
        }
        this.$message.success(res.meta.msg);
        this.dialogVisible = false;
        this.getUserList();
      });
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      // console.log(id);
      let { data } = await this.$axios.get(`users/${id}`);
      // console.log(data);

      if (data.meta.status !== 200) {
        return this.$message.error("查询失败");
      }
      this.editForm = data.data;

      this.editdialogVisible = true;
    },
    // 监听修改用户对话框的关闭事件
    // editDialogClosed() {
      // console.log(this.editForm);
      // 重置表单
      // this.$refs.editForm.resetFields();
    // },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return;
        // 通过发起修改用户信息的请求
        let { data: res } = await this.$axios.put(`users/${this.editForm.id}`, {
          email: this.editForm.email,
          mobile: this.editForm.mobile,
        });
        // console.log(res);
        if (res.meta.status !== 200) {
          return this.$message.error(res.meta.msg);
        }
        this.editdialogVisible = false;
        this.getUserList();
        this.$message.success(res.meta.msg);
      });
    },
    // 通过id删除用户
    async removeUser(id) {
      // console.log(id);
      // 弹框询问用户是否删除
      let res = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "警告",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      // $confirm后面不加catch会报错
      // 如果点确定 返回confirm  如果点取消 返回cancel
      if (res == "cancel") {
        return this.$message.info("已取消");
      }
      let { data } = await this.$axios.delete(`users/${id}`);
      // console.log(data);
      if (data.meta.status !== 200) {
        return this.$message.warning("删除失败");
      }
      this.$message.success("删除成功");
      this.getUserList();
    },
    // 分配角色 对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;

      // 在展示对话框之前获取所有角色列表
      let { data: res } = await this.$axios.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色列表失败");
      }
      this.rolesList = res.data;
      this.$message.success("获取角色列表成功");
      // console.log(this.rolesList);

      this.setRoleDialogVisible = true;
    },

    // 点击按钮 完成角色分配
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error("请选择要分配的角色");
      }

      let { data: res } = await this.$axios.put(
        `users/${this.userInfo.id}/role`,
        { rid: this.selectedRoleId }
      );

      // console.log(res);

      if (res.meta.status !== 200) {
        return this.$message.error("更新角色失败");
      }
      this.$message.success("更新成功");
      this.getUserList();
      this.setRoleDialogVisible = false;
    },

    setRoleDialogClosed() {
      (this.selectedRoleId = ""), (this.userInfo = {});
    },
  },
};
</script>

<style lang="less" scoped></style>
